A-Premium Fuel Tank Filler Cap — Direct-Fit Replacement for Hyundai, Kia, Genesis (1-Year Warranty)

A-Premium Fuel Tank Filler Cap is a direct-fit replacement cap engineered to restore a tight, secure seal on compatible Hyundai, Kia and Genesis vehicles.

If your factory fuel cap went missing, cracked, or the check-engine light points to an evaporative emission system leak, this A-Premium replacement is made to match original dimensions and reference numbers so you can reinstall a reliable filler cap quickly. It is engineered for broad fitment across many Hyundai, Kia and Genesis model years, backed by A-Premium’s one-year unlimited-mileage guarantee for peace of mind.

Which vehicles will this filler cap fit?

This cap covers a wide range of Hyundai, Kia and Genesis models spanning older and recent model years. Check the compatibility list and reference numbers to confirm fitment for your specific year and trim before ordering.

• Fits Genesis G70 (2019–2023), G80 (2017–2020), G90 (2017–2022), plus Genesis Coupe and sedan entries.
• Supports Hyundai models including Accent, Elantra (multiple variants), Sonata (various years), Kona, Santa Fe, Tucson, Ioniq, Palisade and more.
• Compatible with Kia models such as Rio, Forte, Optima, Soul, Sorento, Sportage, Stinger, Telluride, Seltos and K5 among others.
• Reference numbers: 310103L600U, 310102C800FFF, 310103L600, 310102C800 — use these to verify OEM-style replacement.

How does this cap restore vehicle performance or diagnostics?

A worn or missing fuel cap can let fuel vapors escape and trigger evaporative emission system warnings or fuel odor. Replacing it with a proper-fit cap helps re-establish the intended seal so onboard diagnostics can properly monitor the fuel system.

• Replaces factory cap to prevent fuel vapor leaks and reduce odor.
• Helps eliminate EVAP system fault codes caused by loose or damaged caps.
• Engineered to original reference dimensions for consistent sealing and fitment.

What are the product features and warranty?

The A-Premium Fuel Tank Filler Cap is built as a straightforward replacement component with compatibility details provided for easy cross-checking. A-Premium supports the part with a generous guarantee to cover workmanship and fit-related issues.

• Extensive vehicle fitment covering many Hyundai, Kia and Genesis models and model years.
• Reference numbers included for accurate verification against OEM parts.
• One-year unlimited-mileage guarantee from A-Premium for added confidence.

How do I confirm this is the right cap for my car?

Before purchasing, compare the part’s reference numbers and fitment list with your vehicle’s year, model and current cap. If your existing cap has matching references or your owner’s manual lists one of the provided part numbers, this replacement should fit as intended.

• Match the listed reference numbers (310103L600U, 310102C800FFF, 310103L600, 310102C800) with your OEM parts.
• Review the detailed model-year fitment list for Hyundai, Kia and Genesis vehicles included above.
• Contact support or your mechanic with VIN and part references for final confirmation if unsure.

Who is this for: This A-Premium Fuel Tank Filler Cap is ideal for owners of Hyundai, Kia and Genesis cars and SUVs who need a reliable, direct-fit replacement to stop fuel vapor leaks, clear EVAP-related dashboard warnings, or replace a lost or damaged cap. It’s also a practical option for repair shops and DIYers who prefer parts that match original reference numbers and come with a clear warranty.